243243123434 has 8 divisors (see below), whose sum is σ = 365016025728. Its totient is φ = 121571114860.

The previous prime is 243243123311. The next prime is 243243123443. The reversal of 243243123434 is 434321342342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 243243123394 and 243243123403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25217402 + ... + 25227045.

It is an arithmetic number, because the mean of its divisors is an integer number (45627003216).

Almost surely, 2^243243123434 is an apocalyptic number.

243243123434 is a deficient number, since it is larger than the sum of its proper divisors (121772902294).

243243123434 is a wasteful number, since it uses less digits than its factorization.

243243123434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50446860.

The product of its digits is 165888, while the sum is 35.

Adding to 243243123434 its reverse (434321342342), we get a palindrome (677564465776).

The spelling of 243243123434 in words is "two hundred forty-three billion, two hundred forty-three million, one hundred twenty-three thousand, four hundred thirty-four".